增加七牛 helper

@@ -24,7 +24,7 @@ app.engine('.hbs', hbs({
     defaultLayout: 'layout',
     layoutsDir: doraemon,
     partialsDir: [path.join(__dirname, 'views/partial'), `${doraemon}/partial`],
-    helpers: 'helpers'
+    helpers: require('../../library/helpers')
 }));
 
 // router

 <div class="icons-wrapper">
     <ul class="icons-list clearfix">
         {{#appIconList}}
-        <li class="icons-item"><a href="{{url}}" class="imagebar"><img src="{{src}}" alt=""></a><a href="{{url}}" class="linkbar">{{title}}</a></li>
+        <li class="icons-item"><a href="{{url}}" class="imagebar"><img src="{{image src 50 50}}" alt=""></a><a href="{{url}}" class="linkbar">{{title}}</a></li>
         {{/appIconList}}
     </ul>
 </div>

+/**
+ * Handlebars helpers
+ * bikai kai.bi@yoho.cn
+ * 2016-05-10
+ */
+
+var _ = require('lodash');
+
+/**
+ * 七牛图片路径处理
+ * @param  {[tring]} url
+ * @param  {[tring]} width
+ * @param  {[tring]} height
+ * @param  {[tring]} mode
+ * @return {[tring]}
+ */
+exports.image = function(url, width, height, mode) {
+    mode = _.isNumber(mode) ? mode : 1;
+    return url.replace(/{width}/g, width).replace(/{height}/g, height).replace(/{mode}/g, mode);
+};